阅读下面这篇短文,短文后列出了7个句子,请根据短文的内容对每个句子作出判断。如果该句提供的是正确信息,请选择A项:如果该句提供的是错误信息,清选择B项;如果该句的信息文章中没有提及,请选择C项。 Rescue Platform In the aftermath of the terrorist attacks on the World Trade Center, security experts are trying to develop new ways of rescuing people from buming skysrapers. One idea is a platform capable of flying vertically and hovering in the air like a helicopter. The platform would rise up and down alongside a skyscraper and pick up people trapped in high stories. The idea for the vertical takeoff platform was hatched more than ten years ago by a Russian aerospace engineer, David Metreveli, who has since moved to Israel. Metreveli’s dedsign, called the Eagle, calls for two jet engines that turn four large horizontal propellers. The spinning of the propellers generates the necessary lift, or upward force, to raise the platform. The more power is supplied to the propellers, the higher the platform rises. Moving the platform sideways involves applying differing amounts of power to each propeller. Helicopters are now used in some cases to get people out of buming buildings, Escape baskets slung from them dangle beside the building for people to climb into. Unfortunately, the baskets cannot reach every floor of a building because the ropes from which they hang become unstable beyond a certain length. So far, Metreveli has built a small-scale model of the Eagle to test his idea. In the wake of September 11, he has been able to secure enough funding to start building a larger, 4-meter by 4-meter prototype, which he calls the Eaglet. In the third paragraph, the word helicopter refers to the Eagle.
A. Right
B. Wrong
C. Not mentioned
查看答案
第三篇 Computers in Cars You’re far from home on a lonely road. Shadowy forests stretch away on both sides. A thick mist (雾) makes it difficult to see far beyond your car’s windshield (挡风玻璃). "Can this be route 90A" you wonder. If it is, you should be near a town. Yet there’s no hint of one. Night is closing in, and you’re low on gasoline. This is a situation where an in-car computer that can navigate would be a big help. A car computer that navigates Yes! Such computers exists. Several experimental models are being tested by General Motors, Ford, Chrysler, and several foreign car markets. These computers vary in details. But they all contain series of maps on Vediodiscs or videotapes. For example, one computer system contains 13,300 maps covering the continental US. Before starting out on a trip, a driver can type in the code for the region he or she plans to drive through. The computer then shows a map of that region. At the same time, a tiny radio receiver linked to the computer goes to work. It picks up signals from navigation satellites such as the NAVSTAR network. Using these signals, the computer shows a the car’s position at all times and displays this position on the map. The computer can also calculate and display the best route to follow. A navigation computer may also receive and use data about road construction, weather conditions, and traffic jams. This information would be displayed to the driver and the computer would also use the information to work out alternate (交替的) routes. Most cars nowadays also contain computers that help cars run more effic!ently. Microprocessors (微处理机的) control certain engine functions by regulating the mixing of fuel. Data on car speed, oil pressure, revolutions per minute, engine temperature, and fuel level’ can be displayed as digital data (numbers) or warming lights. Some auto designers suggest that a central computer display can be used to clearly present such timely information as car speed and fuel level. Warning lights would indicate a drop in oil pressure or a sudden rise in engine temperature. To get more information on these conditions, the driver would call it up on the computer display screen. When needed, the computer could be "asked" to provide navigation aid or information about the car’s condition. The navigation computers have one thing in common: they all ______.
A. contain series of maps on videodiscs or videotapes
B. contain 13,300 maps covering the continental US
C. can be obtained free of charge
D. cost a lot of money
第二篇 Will Quality Eat up the US Lead in Software If US software companies don’t pay more attention to quality, they could kiss their business good-bye. Both India and Brazil are developing a world-class software industry. Their weapon is quality and one of their jobs is to attract the top US quality specialists whose voices are not listened to in their country. AIready, of the world’s 12 software houses that have earned the highest rating in the world, seven are in India. That’s largely because they have used new methodologies rejected by American software specialists. For example, for decades, quality specialists, W. Edwards Deming and J. M.Juran had urged US software companies to change their attitudes to quality. But their quality call mainly fell on deaf ears in the US — but not in Japan. By the 1970s and 1980s, Japan was grabbing market share with better, cheaper products. They used Deming’s and Juran’s ideas to bring down the cost of good quality to as little as 5% of total production costs. In US factories, the cost of quality then was 10 times as high: 50%. In software, it still is. Watts S. Humphrey spent 27 years at IBM heading up software production and then quality assurance. But his advice was seldom paid attention to. He retired from IBM in 1986. In 1987, he worked out a system for assessing and improving software quality. It has proved its value time and again. For example, in 1990 the cost of quality at Raytheon Electronics Systems was almost 60% of total software production costs. It tell to 15% in 1996 and has since further dropped to below 10%. Like Deming and Juran, Humphrey seems to be winning more praises overseas than at home. The Indian government and several companies have just founded the Watts Humphrey Software Quality Institute at the Software Technology Park in Chennai, India. Let’s hope that US lead in software will not be eaten up by its quality problems. Which of the following statefnents about Humphrey is true
A. He is now still an IBM employer.
B. He has worked for IBM for 37 years.
C. India honors him highly.
D. The US pays much attention to his quality advice.
地西泮(安定)中毒
A. 可用普鲁卡因酰胺或利多卡因加入葡萄糖注射液静脉滴注
B. 注射氟马西尼
C. 给予镇静剂或冬眠疗法
D. 注射阿托品
E. 静脉注射1%亚甲蓝、维生素C和葡萄糖等注射液
F. 有关药物中毒的对症治疗
下面有3篇短文,每篇短文后有5道题,每道题后面有4个选项。第一篇 Losing Weight Girls as young as 10 years old are dieting and in danger of developing unhealthy attitudes about weight, body image and food, a group of Toronto researchers reported Tuesday. Their study of 2,279 girls aged 10 to 14 showed that while the vast majority had healthy weights, nearly a third felt they were overweight and were trying to lose pounds. Even at the tender ages of 10, nearly 32 per cent of girls felt "too fat" and 31 per cent said they were trying to diet. McVey, a researcher at the Hospital for Sick Children in Toronto, and her colleagues analyzed dam collected in a number of surveys of southern Ontario school girls between 1993 and 2003, reporting their findings in Tuesday’s issue of the Canadian Medical Association Journal. Nearly 80 per cent of the girls had a healthy body weight and only 7.2 per cent were considered overweight using standard weight-to height ratios. Most researchers suggest the rate of overweight children in this country is several times higher than that figure. Nearly 30 per cent of the girls reported they Were currently trying to lose weight, though few admitted to dangerous behavior such as self-induced vomiting. Still, a test that measured attitudes towards eating showed 10.5 per cent of survey Participantswere already at risk of developing an eating disorder. "We’re not talking about kids who’ve been prescribed a diet because they’re above average weight or overweight. We’re talking about children who are within a healthy weight range. And they have taken it upon themselves to diet to lose weight," McVey said, acknowledging she found the rates disturbing. She said striking a balance between healthy weights and healthy attitudes towards food and body image is a complex task, with no easy solutions. overweight adj. 超重的,过重的 induce vt.引起,导致 prescribe vt.处方;开药;嘱咐 The study showed that most of the girls ______.
A. were overweight
B. were on a diet
C. had unhealthy attitudes about weight
D. had a healthy body weight